Disk filter
CA 1090711 A · Owner: Enso-Gutzeit Osakeyhtio · Inventors: Koskinen, Ensio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention comprises a filter apparatus for filtering a liquid comprising: tank means for containing therein a liquid to be filtered; an elongated hollow shaft rotatably mounted on said tank means; a plurality of disk filters arranged on said hollow shaft at spaced intervals along the length thereof and affixed to said hollow shaft for rotation therewith said, disk filters essentially comprising a generally circular configuration having said hollow shaft extending through the central portion thereof, said disk filters being arranged to be at least partially submerged in the liquid contained in said tank means for passage therethrough upon rotation of said shaft; means on said …
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted December 2, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 2, 1997.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.